Fixes #1542 - GraalVMNativeImagePlugin ignores resources in src/graal

[heaven-born]

Fixes #1542

[lightbend-cla-validator]

Hi @heaven-born,

Thank you for your contribution! We really value the time you've taken to put this together.

Before we proceed with reviewing this pull request, please sign the Lightbend Contributors License Agreement:

https://www.lightbend.com/contribute/cla

[heaven-born]

I signed the CLA

[muuki88]

Thanks for your PR. I'm not too familiar with graalvm, but sounds legit that you want to include resources.

Did the Universal / mappings setting not workout for you?

[heaven-born]

Doesn't look like Universal / mappings has any effect on GraalVMNativeImagePlugin, but I tried just in case, and it didn't work out.
But even if it did, it wouldn't be the way as it is documented in https://www.scala-sbt.org/sbt-native-packager/formats/graalvm-native-image.html :

If you are building the image in a docker container, and you have any resources that need to be available to the native-image command, such as files passed to -H:ResourceConfigurationFiles or -H:ReflectionConfigurationFiles, you can place these in your projects src/graal directory. Any files in there will be made available to the native-image docker container under the path /opt/graalvm/stage/resources.

Currently, all resources placed in src/graal directory are not accessible for -H:ResourceConfigurationFiles and -H:ReflectionConfigurationFiles, because /opt/graalvm/stage/resources is not in classpath.

[heaven-born]

I signed the CLA, should I restart the build somehow to make this check pass now?

[muuki88]

I'll release ASAP

[muuki88]

Version 1.9.17 is on it's way

[heaven-born]

looks like something went wrong with the build